| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 219690000 | Waveguide applicator | 59 |
| 20080264934 | METHOD AND APPARATUS FOR MICROWAVE ASSISTED PROCESSING OF FEEDSTOCKS - The present invention relates to an improved reactor, which allows microwave-assisted processing of feedstocks or mixtures of hydrocarbons, and the operating system thereof, which operates under high temperatures and pressures of hydrogen or other gases, in continuous of batch mode. The invention relates to modifications in the geometric configuration of the reactor to process diverse hydrocarbon feedstocks, with or without the addition of catalysts, in the presence or absence of hydrogen or other gases, forming a system which includes a reaction vessel and associated devices, so as to to allow better transmittance of the radiation onto the feedstock to be processed and guarantee maximum absorption of the microwaves by the the reaction medium irrespective of the composition thereof. | 10-30-2008 |
| 20080272113 | Microwave Furnace - A system for melting a substance may be provided. The system may comprise a microwave generator, at least one wave guide, a melter assembly, and at least one thermal insulator. The at least one wave guide may connect the microwave generator to at least one power transfer element. The at least one wave guide may be configured to transfer microwave energy from the microwave generator to a refractory assembly. The melter assembly may comprise the refractory assembly and the at least one power transfer element connected to the refractory assembly. The refractory assembly may comprise at least one absorption element configured to transfer microwave energy, received from the at least one power transition element, into heat energy. The at least one thermal insulator may be configured to allow the microwaves to penetrate to the at least one absorption element. | 11-06-2008 |
| 20080272114 | MICROWAVE IRRADIATION APPARATUS - In a microwave irradiation apparatus, an applicator portion has an interior space for housing an object to be irradiated. A first microwave irradiation system outputs a first microwave to the interior space in a first mode so as to generate a large electric field and a small magnetic field at a specific place of the interior space. A second microwave irradiation system outputs a second microwave having a polarization plane crossing a polarization plane of the first microwave to the interior space in a second mode so as to generate a large magnetic field and small electric field at the specific place of the interior space. | 11-06-2008 |
| 20080314894 | MICROWAVE APPLICATION - A microwave applicator comprising a coaxial electrical input ( | 12-25-2008 |
| 20090084780 | Microwave Furnace - A system for melting a substance may be provided. The system may comprise a crucible insulated with fused silica, a microwave generator configured to supply microwaves, and at least one burner probe extending into the crucible. The at least one burner probe may comprise a wave guide. The wave guide may be configured to receive microwaves from the microwave generator and transmit the microwaves. The at least one burner probe may further comprise an absorber. The absorber may have a geometry configured to cause a minimal amount of microwave energy to be reflected back into the wave guide. In addition, the absorber may comprise a one piece cast of silicon carbide configured to dissipate heat along an exterior of the absorber. The absorber may be further configured to receive the microwaves from the wave guide and convert energy from the microwaves into the heat. | 04-02-2009 |
| 20090166354 | Microwave Heating Applicator - A new, comparatively small type of microwave system based on open-ended applicators is disclosed. The applicator according to the invention uses a main evanescent and a propagating mode in combination, where the combination results in a cancellation of the horizontal magnetic fields at the ends of at least two opposing walls. The effect of this is that the fields propagating out of the applicator become concentrated to the applicator centreline (axis) region, provides an efficient heating of a load or assembly of loads, as well as a stable impedance matching of the system under variable loading conditions due to the mode evanescence, while not leaking energy between adjacent applicators. The applicator can also be used for direct feeding of an underlying small closed metal cavity, for providing (the same favourable) mode conditions to a load in this cavity. | 07-02-2009 |
| 20090194528 | APPLICATOR AND APPARATUS FOR HEATING SAMPLES BY MICROWAVE RADIATION - The present invention relates a microwave applicator for heating a sample by microwave radiation which is transmitted via an at least partially tapering transmission duct from a microwave source to a cavity adapted to receive the sample to be heated. The transmission duct has at least one external wall, said wall defining an internal space for the propagation of said microwave radiation and comprising an interface which is at least partially permeable to said microwave radiation. The interface is at least partially arranged within said tapering portion of the duct. The duct is adapted to form a jacket surrounding the cavity with said interface forming an inner wall of said jacket. | 08-06-2009 |
| 20090206071 | MICROWAVE HEATING APPARATUS - A high-frequency heating apparatus of the present invention includes a heating chamber to which a heating plate for loading a subject to be heated thereon is detachably attached, a microwave generating unit, a waveguide for transmitting a microwave from the microwave generating unit, a rotation antenna for radiating the microwave into the heating chamber from the waveguide, a driving unit for turning/driving the rotation antenna, an operating portion capable of choosing the grill menu by which the subject to be heated put on the heating plate is heated and a hot-up menu by which the subject to be heated is heated without the heating plate, and a controlling unit for controlling the driving unit based on an output signal form the operating portion, wherein the controlling unit controls to vary a direction of a sharp portion of a radiation directivity of the rotation antenna in response to the output signal from the operating portion. | 08-20-2009 |
| 20090283516 | Stable high-Q magnetron power supply - A microwave power supply includes a magnetron, a waveguide configured to carry microwave power from the magnetron to a selected load, and an adjustable impedance element connected to the waveguide at a location upstream from the magnetron. The power supply may further include provision for varying the filament voltage to the magnetron tube. In the associated method, the adjustable upstream impedance and the adjustable filament voltage may be combined (and may be adjusted iteratively) to achieve high Q output. The load may be an applicator cavity for processing selected materials. The invention is particularly suitable for high Q cavities, such as single mode cavities, where it is desirable to match the output of the microwave source to the characteristics of the cavity for efficient operation. The adjustable upstream impedance element represents an electrical characteristic that may be achieved through various physically adjustable devices such as a movable backwall, a sliding short, a stub tuner, or an adjustable iris. | 11-19-2009 |
| 20100012649 | IRRADIATION FACILITY OF RADIANT HEAT - A irradiation facility of radiant heat comprises one or more radiation generators ( | 01-21-2010 |
| 20100032429 | Microwave Furnace - A system for melting a substance may be provided. The system may comprise at least one burner probe. The at least one burner probe may comprise an absorber and a first wave guide configured to transmit microwaves. The absorber may be configured to receive the microwaves from the first wave guide and to convert energy from the microwaves into heat. The system may further comprise a second wave guide and a rotating wave guide. The rotating wave guide may be positioned between the first wave guide and the second wave guide. The rotating wave guide may comprise a plurality of sections configured to rotate about a central axis. The rotating wave guide may be configured to rotate approximately 90 degrees. For example, the rotating wave guide may comprise three sections wherein each one of the three sections may be configured to rotate approximately 30 degrees. | 02-11-2010 |
| 20100059508 | SEMICONDUCTOR PROCESSING - This document discloses semiconductor processing systems, methods, and devices. The systems, methods and devices activate dopants in a processing chamber having a temperature that is less than, for example, 300 degrees. A microwave energy source provides a microwave transmission to a waveguide system that uniformly distributes the microwave transmission. The waveguide system can include a rectangular waveguide coupled to a cylindrical waveguide. The rectangular waveguide guides the microwave transmission in a second propagation direction to a cylindrical waveguide. The cylindrical waveguide uniformly distributes the electromagnetic transmission and guides the electromagnetic transmission in a third propagation direction to a processing chamber. A semiconductor wafer can be exposed to the microwave transmission and the temperature of the chamber to activate dopants in the semiconductor wafer. | 03-11-2010 |
| 20100059509 | MICROWAVE HEATING APPLIANCE - An object of the present invention is to provide a microwave heating appliance capable of achieving a locally concentrated heating in answer to the purpose while achieving a uniform heating in the overall heating chamber in a normal mode. A microwave heating appliance of the present invention includes a microwave generating unit, a waveguide for transmitting a microwave from the microwave generating unit, a heating chamber for housing a heated subject that is heated by the microwave, a rotating antenna for radiating the microwave from the waveguide to the heating chamber, a driving unit for rotating and driving the rotating antenna, a temperature distribution detecting unit for detecting a temperature distribution in the heating chamber, and a controlling unit for controlling a direction of the rotating antenna by controlling the driving unit based on a detected result of the temperature distribution detecting unit, wherein the controlling unit controls a sharp part of radiation directivity of the rotating antenna in a direction decided based on the detected result of the temperature distribution detecting unit to execute a concentrated heating, and the driving unit has a position detecting unit for detecting a position of the rotating antenna. | 03-11-2010 |
| 20100059510 | APPARATUS FOR MICROWAVE HEATING OF PLANAR PRODUCTS - In a microwave heating apparatus, the fundamental TE | 03-11-2010 |
| 20100072195 | COMPACT DESICCATING MICROWAVE OVEN FOR WATER REMOVAL BY AEROSOL FORMATION - A microwave based dewatering device utilizing circularly polarized TE | 03-25-2010 |
| 20100116821 | STRUCTURE HEATING SYSTEM BY MICROWAVE, MICROWAVE OSCILLATION WAVEGUIDE APPARATUS AND MICROWAVE OSCILLATOR COOLING METHOD - A microwave oscillator is effectively cooled and its output characteristic is stabilized, while the waterproof property of the microwave oscillator is secured. Additionally, the heat of the air heated as a result of cooling the microwave oscillator is discharged effectively to maintain the cooling effect. Furthermore, the cooling structure of the microwave oscillator is simplified and downsized and the cost of the arrangement is reduced. A structure includes an air blower member for blowing air to a microwave oscillator and a heat radiating/air circulating member airtightly connected to the terminating end of a microwave waveguide and a shield box so as to be able to cool the air introduced into the microwave waveguide after cooling the microwave oscillator as the air blower member is driven to by turn drive the air to flow from the terminating end toward the shield box. The air in the shield box and the microwave waveguide is enabled to circulate. | 05-13-2010 |
| 20100126987 | Device for transfer of microwave energy into a defined volume - A planar antenna device that transfers microwave energy from generator into a separate defined volume is disclosed. Device having a single-disk radiator with diameter of 0.95-1.45 half-wavelengths provides both uniformity over 90% in rectangular chamber and acceptable value of SWR (standing wave ratio) if tuned for specific microwave generator. Device having a poly-disk radiator with diameter of 0.95-1.45 half-wavelengths provides both uniformity over 90% in rectangular chamber and acceptable value of SWR for whole industrial frequency band without additional tuning/s. | 05-27-2010 |
| 20100163554 | Rapid and homogenous heat treatment of large metallic sample using high power microwaves - A system for heat-treatment of large metallic samples including a microwave heating apparatus with a wave guide, means for monitoring and measuring temperature, holding means for holding the metallic sample. The holding means comprises a casket configuration made of low density alumina fiber board and wrapped with low density alumina fiber material to define a cavity and provided with susceptors along the inner walls of the cavity. | 07-01-2010 |
| 20100237067 | MICROWAVE HEATING DEVICE - A microwave heating device comprises a cavity arranged to receive a load to be heated and a feeding structure for feeding microwaves in the cavity. The feeding structure comprises a transmission line for transmitting microwave energy generated by a microwave source and a resonator arranged at the junction between the transmission line and the cavity for operating as a feeding port of the cavity. The dielectric constant of the material constituting the interior of the resonator and the dimensions of the resonator are selected such that a resonance condition is established in the resonator for the microwaves generated by the source and impedance matching is established between the transmission line, the resonator and the cavity. In addition, the present invention provides a microwave heating device comprising a plurality of feeding ports with reduced crosstalk. | 09-23-2010 |
| 20100270291 | DEVICE FOR HEATING A SAMPLE BY MICROWAVE RADIATION - The present invention concerns a device for heating a sample by microwave radiation comprising a source of microwave radiation, a first waveguide for guiding said microwave radiation to an applicator space adapted to receive said sample to be heated, wherein said applicator space is defined by a terminal portion of said first waveguide and an initial portion of a second waveguide extending from said terminal portion of said first waveguide and being arranged at an angle with respect to said first waveguide. | 10-28-2010 |
| 20110024411 | COMBINED HEATER AND CONVEYOR - A combined heating and conveyor apparatus for use in heating a bulk solid product, such as a food product, comprises a hollow channel member having a base that forms a conveying surface along which product is to be moved, the channel member having at least one entrance region and one discharge region, an actuator which in use causes the channel member to vibrate in a manner which tends to cause product introduced to the channel at the entrance region to move towards the discharge region; and characterised in that the channel member functions as a microwave frequency closed waveguide, and a source of microwave radiation is connected to the channel member in such a way that the microwave radiation propagates along the channel member and is substantially retained within the channel member whereby, in use, the energy in the microwaves can be at least partially absorbed by the product that passes along the channel. | 02-03-2011 |
| 20110062151 | APPARATUS FOR COOKING FOOD PRODUCTS ON BOTH SIDES THEREOF - An apparatus for cooking food products on both sides thereof, including a base member ( | 03-17-2011 |
| 20110073592 | Applicator for microwave enhanced chemistry - According to the present invention, a microwave generator includes a variable voltage provided from a first transformer to a second transformer having a secondary winding split into a filament winding cathode low AC signal and a secondary winding providing a high voltage which is doubled and rectified in a half-wave voltage doubler for providing a pulsed DC signal through a ballast resistor to a magnetron anode responsive to an electromagnetic field. In still further accord with the present invention, a microwave sample cavity includes a waveguide, and a hole for receiving a sample to be microwave-heated, and an inductive tuning post all on a straight line, wherein the hole is adjacent the waveguide and the post is distant from the waveguide | 03-31-2011 |
| 20110079592 | HIGH FREQUENCY HEATING DEVICE WITH HEATER - A system for blowing heated air flows from behind a heating chamber has tended to induce non-uniform burning of cooked foods and has involved long cooking times. There is provided a structure including upper blow-off ports, lower blow-off ports and blow-in ports which are placed in side surfaces of a heating chamber in left and right sides of the heating chamber, in order to circulate heat within the heating chamber, which realizes a system for heating through circulations of heated air flows from left and right sides of the heating chamber, thereby enabling reduction of cooking times. | 04-07-2011 |
| 20110253707 | MICROWAVE HEATING DEVICE AND ITS APPLICATION IN CHEMICAL REACTIONS - Disclosed herein is a microwave heating device comprising a microwave irradiation cavity and a material conduit which runs into and out of the microwave irradiation cavity through cavity wall of the microwave irradiation cavity, a waveguide tube for guiding microwave being installed on the cavity wall, characterized in that the microwave heating device further comprises a heat exchange tube which is disposed inside the material conduit and enters and leaves the material conduit from the nozzle or wall of the material conduit. The present invention also discloses use of the microwave heating device in chemical reactions. The microwave heating device provided by the present invention may control the temperature of the material inside the material conduit under continuous irradiation of microwave. | 10-20-2011 |
| 20110297671 | MICROWAVE HEATING APPARATUS WITH ROTATABLE ANTENNA AND METHOD THEREOF - A microwave heating apparatus and a method for heating/browning a piece of food by means of microwaves are provided. The microwave heating apparatus comprises a cavity arranged to receive, in a substantially horizontal browning region, a piece of food to be browned. The microwave heating apparatus further comprises a microwave source for generating microwaves and a rotatable antenna arranged at the cavity bottom for supplying the generated microwaves. The antenna is configured to produce at least one radiating lobe pointing towards the browning region such that the intersection between the radiating lobe and the browning region forms a hot spot, thereby forming a ring-shaped heating pattern in the browning region under rotation of the antenna. The present invention is advantageous in that a microwave heating apparatus with an improved crisp function is provided. | 12-08-2011 |
| 20110315678 | MICROWAVE HEATING DEVICE - PROBLEM TO BE SOLVED: To provide a microwave heating device evenly and efficiently irradiating a heating object with microwaves without using a turning mechanism. | 12-29-2011 |
| 20120024844 | DEVICE AND IMPLEMENTATION THEREOF FOR REPAIRING DAMAGE IN A COOKING APPLIANCE - A cooking appliance such as a microwave oven is provided with a sacrificial region for repairing damage caused by arcing and related failure modes. The sacrificial region incorporates a component that, when damaged, is removable from the cooking appliance for replacement by another component of similar construction. In one implementation, a sacrificial component is utilized in a microwave oven with a heated cavity subject to microwave radiation from a magnetron. The sacrificial component in this example includes an aperture that communicates with an opening in the cavity, and through which the radiation impinges into the heated cavity. | 02-02-2012 |
| 20120091123 | MICROWAVE SYSTEM AND METHOD FOR CONTROLLING THE STERILIZATION AND INFESTATION OF CROP SOILS - The method and the system are applicable in farming activities, pest control, industry, agriculture, forestry, etc. for controlling insects and other plant pests from crops. The system performing the method comprises a source of lethal impact which is a microwave generator with a microwave guiding element directed so as to infested soil. The microwave energy is transferred from a microwave generator into the pests located in the desired soil location, killing the plant insects and pests. | 04-19-2012 |
| 20120103976 | APPARATUS FOR HEATING CONTAINERS - An apparatus for heating containers, comprising a carousel structure, which turns about a vertical axis and carries a plurality of microwave heating units, wherein each microwave heating unit comprises a heating chamber designed to receive a respective container and a microwave generator connected to a waveguide, which communicates with the respective heating chamber, wherein each of said heating chambers has a base on which a respective container is to rest, a rear wall, which extends upwards from said base, and a lid, which is mobile between an open position for insertion and removal of the containers and a closed position for microwave heating of the containers, and wherein said waveguide has an output section open on said rear wall, an input station, designed for loading the containers to be heated into respective heating chambers, and an output station, designed for removing the containers heated by said heating chambers. | 05-03-2012 |
| 20120125920 | METHOD AND APPARATUS FOR DUAL APPLICATOR MICROWAVE DESIGN - The invention described herein pertains generally to a more efficient and cost-effective method and apparatus for: (1) coupling of microwave energy from a microwave generator or plurality of microwave generators into an integral set of applicators; (2) extraction and separation of organic compounds from a mixture of organic and inorganic compounds; and (3) recovery and conversion of the organic compounds to gaseous and liquid fuels. The apparatus described in this invention result in improved microwave absorption within the mixture flowing through the applicators by increasing residence time within the applicators, resulting in a higher temperature within the material. The higher temperature lowers the viscosity of the solution, but also provides a limited reduction of the combination of complex chain and aromatic organic compounds to allow recovery of syngas and fuel oil. | 05-24-2012 |
| 20120160835 | WOOD HEATER WITH ENHANCED MICROWAVE BARRIER SYSTEM - An optimized microwave barrier assembly for use in conjunction with a microwave wood heater. The barrier is configured to allow microwaves to pass therethrough in a TM | 06-28-2012 |
| 20120160836 | WOOD HEATER WITH ENHANCED MICROWAVE LAUNCHING SYSTEM - A microwave heater capable of heating a bundle of wood and equipped with an optimized system for launching and/or dispersing microwave energy. The microwave launching system can include one or more split microwave launchers at least partly disposed in the interior of the heater. The microwave dispersing system can include one or more moving reflectors for rastering microwave energy emitted from the split launchers. | 06-28-2012 |
| 20120160837 | WOOD HEATER WITH ENHANCED MICROWAVE LAUNCH EFFICIENCY - A microwave heater capable of heating a bundle of wood and equipped with an optimized system for introducing microwave energy into the heater. The system uses a high-efficiency elongated waveguide launcher having a plurality of launch openings defined in relatively thin walls. The waveguide launcher can exhibit a launch efficiency of at least 50 percent, thereby providing substantially energy savings over conventional waveguide launchers. | 06-28-2012 |
| 20120160838 | WOOD HEATER WITH ENHANCED MICROWAVE DISPERSING AND TM-MODE MICROWAVE LAUNCHERS - A microwave heater capable of heating a bundle of wood and equipped with an optimized system for introducing microwave energy into the heater is provided. Also provided is an enhanced system for launching and dispersing within the heater. The system uses one or more TM | 06-28-2012 |
| 20130134155 | Microwave Heating Device and Image Fixing Apparatus Using the Same - A heating chamber is divided into a plurality of spaces by barrier sections including a conductive material. Phase shifters having different lengths with respect to a direction and including a dielectric body having permittivity higher than air are inserted in positions of a terminal section, in the spaces except for at least one space, to differentiate positions of bottoms of standing microwaves formed in the respective spaces from each other with respect to the direction. In addition, impedance adjusters having different lengths with respect to the direction and including a dielectric body having permittivity higher than air are inserted in positions on an upstream side of a region passed by the object to be heated, in the spaces except for at least one space, to reduce differences in impedance of the spaces from an entrance of the heating chamber to the terminal section including the phase shifters. | 05-30-2013 |
| 20130140302 | LAUNCHER FOR MICROWAVES - A launcher for microwave radiation comprises an elongate guide part, a surround part which surrounds a length of the guide part, at least one inwardly facing baffle provided on an inner face of the surround part and extending towards the guide part; and at least one outwardly facing baffle provided on an outer face of the guide part which is spaced axially along the guide part relative to the at least one inwardly facing baffle and faces outwards towards the inner surface of the surround part. The baffle(s) together with the guide part and the surround part define a labyrinth seal which in use acts as a choke to prevent microwaves escaping by passing though the gap between the guide part and surround part, and are arranged so that in at least one position of the surround part and the guide part there is no direct mechanical path from the surround part to the guide part, the parts being free to move relative to one another in at least one direction from that position without creating a direct rigid mechanical path from the surround to the guide part. | 06-06-2013 |
| 20140042154 | Microwave Application - A microwave applicator comprising a coaxial electrical input ( | 02-13-2014 |
| 20150136758 | MICROWAVE HEATING DEVICE - In order to radiate microwaves from a waveguide tube to a whole area from end to end of a radiation area within a heating chamber, and to heat uniformly an object to be heated without using a driving mechanism, a microwave heating device of the present invention includes openings for radiating the microwave from the waveguide tube to the inside of the heating chamber. The heating chamber includes a radiation area which has a length of approximate twice an in-tube wavelength in a propagation direction of the waveguide tube. Also, the openings are arranged to have an interval of approximate the in-tube wavelength in the propagation direction of the waveguide tube, and are symmetrically arranged to a center line which intersects perpendicularly to the propagation direction in the radiation area. | 05-21-2015 |
| 20150136759 | MICROWAVE HEATING APPARATUS - A microwave heating apparatus includes a processing chamber configured to accommodate a substrate; a substrate holding unit configured to hold and rotate the substrate in the processing chamber; a microwave generating source configured to generate a microwave; and a plurality of microwave inlet ports formed at a surface of the processing chamber which faces the substrate in the processing chamber, each of the microwave inlet ports having an opening area that gradually becomes wider toward the substrate. The microwave generated by the microwave generating source is irradiated to the substrate in the processing chamber through the microwave inlet ports to heat the substrate. | 05-21-2015 |
| 20150305097 | MICROWAVE HEATING APPARATUS AND MICROWAVE HEATING METHOD - A microwave heating apparatus includes: a processing chamber including a ceiling wall and a bottom wall and accommodating a target object; a microwave introducing unit to generate a microwave for heating the target object; a holding unit to hold the target object; and a control unit to control the microwave introducing unit to heat the target object. During heating the target object, the holding unit holds the target object at a position in which a distance H | 10-22-2015 |
| 20150351165 | MICROWAVE BARRIER SYSTEM FOR USE IN HEATING ARTICLES UNDER VACUUM - An optimized microwave barrier assembly suitable for use with a vacuum microwave heater. The barrier assembly is configured to allow microwaves to pass therethrough in a TM | 12-03-2015 |
| 20160105931 | DEVICE FOR HEAT TREATING PRODUCTS BY MEANS OF MICROWAVES AND HEAT TREATMENT METHOD IMPLEMENTING SUCH A DEVICE - A device for heat-treating products by means of microwaves includes an enclosure ( | 04-14-2016 |
| 20160119984 | RADIO FREQUENCY HEATING SYSTEM - A radio frequency (RF) heating system and process for rapidly and uniformly heating a plurality of articles on a convey line. | 04-28-2016 |
| 219691000 | Slotted | 5 |
| 20080237224 | Microwave Chamber - Microwave apparatus for exposing materials on an elongated member, such as a mandrel, to microwave energy. The apparatus includes a cylindrical microwave exposure chamber ( | 10-02-2008 |
| 20090032528 | MICROWAVE HEATING APPLICATOR - A new, comparatively small type of microwave system based on open-ended applicators is disclosed. The applicator according to the invention uses a main evanescent and a propagating mode in combination, where the combination results in a cancellation of the horizontal magnetic fields at the ends of at least two opposing walls. The effect of this is that the fields propagating out of the applicator become concentrated to the applicator centreline (axis) region, provides an efficient heating of a load or assembly of loads, as well as a stable impedance matching of the system under variable loading conditions due to the mode evanescence, while not leaking energy between adjacent applicators. The applicator can also be used for direct feeding of an underlying small closed metal cavity, for providing (the same favourable) mode conditions to a load in this cavity. | 02-05-2009 |
| 20100163555 | Microwave T-Junction Applicator - A T-junction microwave applicator and a method for making a T-junction microwave applicator with a microwave source supplying electromagnetic energy through a junction arm to a pair of collinear arms extending in opposite directions from their junction with the junction arm. The two collinear arms form a main waveguide terminated in end walls in which entrance and exit ports are formed for a conveyor to convey material to be heated through the main waveguide for exposure to electromagnetic energy. A rectangular conductive ridge in the wall of the main waveguide opposite the junction arm extends the length of the applicator. A cylindrical tuning bar spanning the junction is positioned vertically in a plane perpendicular to the axis of the main waveguide to maximize power transfer to the material to be heated. | 07-01-2010 |
| 219693000 | Having load passage | 2 |
| 20080277388 | In-Line Microwave Warming Apparatus - Microwave warming apparatus includes a housing defining a heating waveguide with a heating cavity. An integral internal electrically conductive ridge projects from one of the longitudinal waveguide walls and extends along the waveguide. A slot having opposite ends extends from the outside through the ridge into the heating cavity, the slot being adapted to receive a cartridge containing a tube so that the tube extends through the slot into the heating cavity. Electromagnetic energy is coupled into the heating waveguide to heat the contents of the tube. A transducer constituted by a first receiving waveguide inside the ridge is adjacent to the slot so that when a cartridge is received in the slot, the transducer can sense the thermal radiation emanating from a segment of the tube and produce a corresponding waveguide-generated signal. A radiometer in the housing is responsive to the waveguide-generated signal and produces a temperature indicating signal. | 11-13-2008 |
| 20100200573 | WIDE WAVEGUIDE APPLICATOR - A microwave waveguide applicator and a method for heating, drying, or curing generally planar materials or products. The applicator comprises a waveguide having a pair of opposing broad sides perpendicular to a pair of opposing narrow sides bounding a rectangular exposure chamber. A microwave source generates and propagates microwaves through the chamber in a propagation direction and with an electric field generally directed from one broad wall to the other. Slotted openings in the narrow sides act as entrance and exit ports for a conveyor transporting a product along a conveying path through the chamber perpendicular to the propagation direction and perpendicular to the electric field. The waveguide may be ridged to focus or bend the electric field, especially for heating thin materials. | 08-12-2010 |
| 219694000 | With dummy load | 1 |
| 20150144620 | TUBULAR WAVEGUIDE APPLICATOR - A microwave heating apparatus with a tubular waveguide applicator forming a heating chamber and with microwave-transparent centering elements to maintain product to be treated in proximity to the centerline axis of the chamber. Product is conveyed through the chamber in a direction in or opposite to the direction of propagation of microwaves. Cylindrical chokes at product entrance and exit openings into the chamber prevent microwave leakage and allow for large openings for large products. In some versions, a low-loss inner tube in the chamber coaxial with the tubular applicator is used to confine product to be heated in proximity to the centerline axis of the chamber to be heated effectively by microwaves with a TM | 05-28-2015 |
| 219695000 | Input power port arrangement | 9 |
| 20090179028 | Processing apparatus with an electromagnetic launch - A processing apparatus, such as a microwave-based processing apparatus. The apparatus includes a vessel having an inner surface defining a chamber configured to hold a reaction mixture, a guide, and a launch coupled to the guide. The guide can be at least partially disposed in the vessel, and is configured to propagate electromagnetic energy. The launch is configured to couple at least a portion of the electromagnetic energy from the guide to the reaction mixture. Example launches include a dielectric window and a projection. Example projections include a metallic projection and a dielectric projection. | 07-16-2009 |
| 20100012650 | MULTI-STAGE CYLINDRICAL WAVEGUIDE APPLICATOR SYSTEMS - A microwave applicator system exposing a material flowing through multiple applicator stages to a different radial heating pattern in each stage for uniform heating. A two-stage applicator system has a pair of back-to-back applicators, each having offset, outwardly jutting walls on opposite sides of a material flow path through a microwave exposure region. The offset, cylindrical juts formed in the wide walls of the generally rectangular waveguide cause hot spots to occur in material flowing through and between the narrow walls of the waveguide at opposite radial positions on a radial line oblique to the longitudinal direction of the waveguide. Uniform product heating can be achieved by directing a material sequentially through these two applicators in opposite directions. A cascaded applicator in which each wide wall has a pair of outward juts offset from each other and from the pair of juts on the other side wall may be used. Other multi-stage applicator systems may be used to expose a flowing material to multiple heating patterns to achieve uniform heating. | 01-21-2010 |
| 20150090708 | MICROWAVE HEATING APPARATUS AND PROCESSING METHOD - A microwave heating apparatus includes a processing chamber for accommodating a target, a support device for supporting the target in the processing chamber and a microwave introducing device for generating microwaves to introduce them into the processing chamber. The processing chamber further includes a top wall having a plurality of microwave introduction ports to introduce the microwaves generated in the microwave introducing device into the processing chamber. Each of the microwave introduction ports has a rectangular shape having long sides and short sides parallel to inner wall surfaces of four sidewalls of the processing chamber, and the support device includes a support member to support the target and a rotating mechanism for rotating the supported target. | 04-02-2015 |
| 219696000 | With tuning | 4 |
| 20090166355 | Microwave applicator, system, and method for providing generally circular heating - A microwave applicator assembly includes a microwave applicator that excites TE modes and provides a generally circular heating pattern in a lossy dielectric material. The microwave applicator has a processing chamber bounded by a circumferential wall in which a plurality of indents are formed. The microwave applicator assembly may further include a feed waveguide coupled to the microwave applicator for inputting microwaves into the processing chamber. The microwave applicator assembly may further include one or more choking sections in communication with the processing chamber to enhance heating efficiency and reduce microwave leakage. | 07-02-2009 |
| 20110290789 | MICROWAVE HEATING APPARATUS - A microwave heating apparatus in which microwaves from a single microwave generator is branched to a plurality of reaction tubes, a heating target material is irradiated with the microwaves while being continuously supplied into respective reaction fields, the reaction fields is heated and controlled simultaneously, parallelly and independently while eliminating the influence of reflected waves generated in the other reaction fields, and a very high throughput is obtained. In the apparatus, branch waveguides for branching microwaves generated from a microwave generator into N branch waves, N being an natural number, are provided, isolators for absorbing reflected waves generated in the reaction fields are provided between the branch waveguides and applicators, power monitors for measuring magnitudes of incident and reflected waves are provided between the isolators and the applicators, and tuners for adjusting impedances in waveguides are provided between the power monitors and the applicators. | 12-01-2011 |
| 20140305933 | SEMICONDUCTOR MICROWAVE OVEN AND MICROWAVE FEEDING STRUCTURE THEREOF - A semiconductor microwave oven and a microwave feeding structure thereof are provided. The microwave feeding structure of the semiconductor microwave oven includes: a chamber body having a door; a semiconductor power source configured to generate a microwave; and a microwave feeding assembly connected between the semiconductor power source and the chamber body, and configured to feed the microwave generated by the semiconductor power source into the chamber body and to convert a first microwave mode output by the semiconductor power source into a second microwave mode adaptive to microwave heating. | 10-16-2014 |
| 20160044750 | Tubular Choked Waveguide Applicator - A microwave heating apparatus with a tubular waveguide applicator and reactive and resistive chokes to decrease leakage. Microwave-transparent centering elements maintain articles to be treated centered in the applicator. Articles, such as individual cylindrical articles or continuous cylindrical strands, advance through the applicator in a direction in or opposite to the direction of propagation of microwaves. The resistive chokes have conductive vanes coated with a dielectric material that absorbs microwave energy that leaks through the reactive chokes to allow for large openings for large-diameter articles. The waveguide applicator is operated in the TE | 02-11-2016 |
| 219697000 | Plural feed | 2 |
| 20110215092 | METHOD AND APPARATUS FOR MICROWAVE DISSOCIATION OF ORGANIC COMPOUNDS - The invention described herein generally pertains to a process for reducing an organic-containing material into lower molecular weight gaseous hydrocarbons, liquid hydrocarbons and solid carbon constituents, said process including the steps of: feeding a sample of said organic-containing material into an infeed system, wherein the infeed system contains a non-flammable blanketing purge gas; transferring the material into at least one microwave applicator containing the purge gas in a pressurized state above local atmospheric pressure to insure that no air migrates into said microwave applicator which might cause a fire or explosion hazard; exposing the material in said microwave applicator to at least two sources of microwaves from at least a pair of divaricated waveguide assemblies for a period of time sufficient to volumetrically reduce said material into said constituents, a frequency of said microwaves between approximately 894 MHz and approximately 1000 MHz and without an external heat source, the microwaves entering the at least one applicator out-of-phase to each other by using unequal lengths of waveguide between the microwave generator and the at least one applicator; the microwaves entering the at least one applicator through at least one applicator diffuser matrix for each divaricated waveguide, which includes at least four essentially parallel beveled entry channels (preferably six slotted, beveled entry channels per applicator diffuser); and collecting byproduct constituents. | 09-08-2011 |
| 20150034632 | DEVICE FOR APPLYING RF ENERGY TO A CAVITY - An apparatus for applying RF energy to an object in a cavity is disclosed. The apparatus may include a plurality of pairs of radiating ports, and a plurality of electrically conductive elements. Each pair of radiating ports may include two radiating ports configured to emit RF radiation into the cavity coherently with each other; and each electrically conductive element may be positioned between two radiating ports constituting a pair of radiating ports. The electrically conductive elements may be arranged such that RF radiation emitted by the plurality of pairs of radiating ports concentrates closer to the center of the cavity than that in the absence of the electrically conductive elements. | 02-05-2015 |
